<template>
  <div>
    <div style="padding: 10px 0">
      <el-input style="width: 200px" placeholder="请输入名称" suffix-icon="el-icon-search" v-model="name"></el-input>
      <el-select clearable v-model="courseId" placeholder="请选择课程" style="width: 200px" class="ml-5">
        <el-option v-for="item in courses"
                   :key="item.id" :label="item.name" :value="item.id "></el-option>
      </el-select>

      <el-select clearable v-model="type" placeholder="请选择题目类型" style="width: 200px" class="ml-5">
        <el-option v-for="item in [{name: '选择题',value:1},{name: '判断题',value:2},{name: '问答题',value:3}]"
                   :key="item.value" :label="item.name" :value="item.value "></el-option>
      </el-select>
      <el-button class="ml-5" type="primary" @click="load">搜索</el-button>
      <el-button type="warning" @click="reset">重置</el-button>
    </div>
    <div style="margin: 10px 0">
      <el-button type="primary" @click="handleAdd">新增<i
          class="el-icon-circle-plus-outline"></i></el-button>

      <el-popconfirm
          class="ml-5"
          confirm-button-text="确定"
          cancel-button-text="我再想想"
          icon="el-icon-info"
          icon-color="red"
          title="您确定删除吗？"
          @confirm="delBatch"
      >
        <el-button type="danger" slot="reference">批量删除<i class="el-icon-remove-outline"></i
        ></el-button>
      </el-popconfirm>
    </div>

    <el-table
        :data="tableData"
        border
        stripe
        :header-cell-class-name="headerBg"
        @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55"></el-table-column>
      <el-table-column prop="id" label="id" width="80"></el-table-column>
      <el-table-column prop="name" label="名称"></el-table-column>
      <el-table-column label="所属课程">
        <template v-slot="scope">
          <span>{{courses.find(v => v.id === scope.row.courseId).name}}</span>
        </template>
      </el-table-column>
      <el-table-column prop="type" label="类型">
        <template v-slot="scope">
          <span v-if="scope.row.type === 1">选择题</span>
          <span v-if="scope.row.type === 2">判断题</span>
          <span v-if="scope.row.type === 3">问答题</span>
        </template>
      </el-table-column>
      <el-table-column prop="a" label="a选项"></el-table-column>
      <el-table-column prop="b" label="b选项"></el-table-column>
      <el-table-column prop="c" label="c选项"></el-table-column>
      <el-table-column prop="d" label="d选项"></el-table-column>
      <el-table-column prop="score" label="分数"></el-table-column>
      <el-table-column prop="answer" label="答案"></el-table-column>
      <el-table-column prop="detail" label="解析"></el-table-column>
      <el-table-column prop="userId" label="出题人id"></el-table-column>
      <el-table-column prop="time" label="出题时间"></el-table-column>

      <el-table-column label="操作" width="180" align="center">
        <template slot-scope="scope">
          <el-button type="success" @click="handleEdit(scope.row)"> 编辑<i class="el-icon-edit"></i></el-button>

          <el-popconfirm
              class="ml-5"
              confirm-button-text="确定"
              cancel-button-text="我再想想"
              icon="el-icon-info"
              icon-color="red"
              title="您确定删除吗？"
              @confirm="del(scope.row.id)"
          >
            <el-button type="danger" slot="reference">删除<i class="el-icon-remove-outline"></i></el-button>
          </el-popconfirm>

        </template>
      </el-table-column>
    </el-table>

    <div style="padding: 10px 0">
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-sizes="[2, 5, 10, 20]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
      >
      </el-pagination>
    </div>
    <el-dialog title="信息" :visible.sync="dialogFormVisible" width="40%">
      <el-form label-width="80px" size="small">
        <el-form-item label="类型">
          <el-select clearable v-model="form.type" placeholder="请选择" style="width: 100%">
            <el-option v-for="item in [{name: '选择题',value:1},{name: '判断题',value:2},{name: '问答题',value:3}]"
                       :key="item.value" :label="item.name" :value="item.value "></el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="课程">
          <el-select clearable v-model="form.courseId" placeholder="请选择" style="width: 100%">
            <el-option v-for="item in courses"
                       :key="item.id" :label="item.name" :value="item.id "></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="名称">
          <el-input v-model="form.name" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="a选项" v-if="form.type === 1">
          <el-input v-model="form.a" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="b选项" v-if="form.type === 1">
          <el-input v-model="form.b" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="c选项" v-if="form.type === 1">
          <el-input v-model="form.c" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="d选项" v-if="form.type === 1">
          <el-input v-model="form.d" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="分数">
          <el-input v-model="form.score" autocomplete="off"></el-input>
        </el-form-item>

        <el-form-item label="答案" v-if="form.type === 1">
          <el-radio v-model="form.answer" label="A">A</el-radio>
          <el-radio v-model="form.answer" label="B">B</el-radio>
          <el-radio v-model="form.answer" label="C">C</el-radio>
          <el-radio v-model="form.answer" label="D">D</el-radio>
        </el-form-item>

        <el-form-item label="答案" v-if="form.type === 2">
          <el-radio v-model="form.answer" label="是">是</el-radio>
          <el-radio v-model="form.answer" label="否">否</el-radio>
        </el-form-item>

        <el-form-item label="答案" v-if="form.type === 3">
          <el-input type="textarea" v-model="form.answer" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item label="解析">
          <el-input v-model="form.detail" autocomplete="off"></el-input>
        </el-form-item>

        <!--        <el-form-item label="发布时间">-->
        <!--          <el-date-picker v-model="form.time" type="datetime" value-format="yyyy-MM-dd HH:mm:ss"-->
        <!--                          placeholder="选择日期时间"></el-date-picker>-->
        <!--        </el-form-item>-->

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name: "question",
  data() {
    return {
      tableData: [],
      pageNum: 1,
      pageSize: 10,
      total: 0,
      name: "",
      form: {},
      multipleSelection: [],
      headerBg: "headerBg",
      dialogFormVisible: false,
      teachers: [],
      user: localStorage.getItem("user") ? JSON.parse(localStorage.getItem("user")) : {},
      courses: [],
      courseId: null,
      type: null,

    };
  },

  created() {
    this.load();

    this.request.get("/coursePlus").then(res => {
      console.log(res)
      this.courses = res.data
    })
  },

  methods: {

    save() {
      console.log('this.form', this.form)
      this.request.post("/question", this.form).then((res) => {
        if (res.code === '200') {
          this.$message.success("保存成功");
          this.dialogFormVisible = false;
          this.load();
        } else {
          this.$message.error("保存失败");
        }
      });
    },

    load() {
      //加载2条数据
      this.request.get("/question/page", {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          name: this.name,
          courseId: this.courseId,
          type: this.type
        },
      }).then((res) => {
        console.log(res);
        this.tableData = res.data.records;
        this.total = res.data.total;
      });
    },


    del(id) {
      this.request.delete("/question/" + id).then((res) => {
        if (res.code === "200") {
          this.$message.success("删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    handleSelectionChange(val) {
      // console.log(val)
      this.multipleSelection = val;
    },

    delBatch() {
      let ids = this.multipleSelection.map((v) => v.id); //[{},{},{}] => [1,2,3]
      console.log(ids);
      this.request.post("/question/del/batch/", ids).then((res) => {
        if (res.code === "200") {
          this.$message.success("批量删除成功");
          this.load();
        } else {
          this.$message.error("删除失败");
        }
      });
    },
    handleAdd() {
      this.dialogFormVisible = true;
      this.form = {};
    },
    //重置
    reset() {
      this.name = "";
      this.courseId = null;
      this.type = null;
      this.load();
    },
    handleEdit(row) {
      console.log("row=", row);
      this.form = row;
      this.dialogFormVisible = true;
    },
    handleSizeChange(pageSize) {
      console.log(pageSize);
      this.pageSize = pageSize;
      this.load();
    },
    handleCurrentChange(pageNum) {
      console.log(pageNum);
      this.pageNum = pageNum;
      this.load();
    },
  },
};
</script>

<style scoped>
.headerBg {
  background-color: #eee !important;
}
</style>